psql question

I'm looking for a way where I can tailor DDL scripts for deployment with environment variables.
Support I have a requirement to prefix table names with dev_ , fqa_, or prod_

I'd like to have a file for each env with their own unique settings - host, dbname
Dev.sql
\set env dev
Fqa
\set env fqa

prod
\set env prod

and then

my deployment script would have
ddl.sql
\i :env.sql
Create table schema.:env_tablename....

I tried it and didn't work.
p1gp1=> \set env dev
p1gp1=> \i P1GP1_ETL_STAGE_TBLS_BIO6113_100.:env.sql
P1GP1_ETL_STAGE_TBLS_BIO6113_100.:env.sql: No such file or directory

Any thoughts on how I might get this to work?

Thanks

Doug Little

Sr. Data Warehouse Architect | Business Intelligence Architecture | Orbitz Worldwide
500 W. Madison, Suite 1000 Chicago IL 60661| Office 312.260.2588 | Fax 312.894.5164 | Cell 847-997-5741
Douglas(dot)Little(at)orbitz(dot)com<mailto:Douglas(dot)Little(at)orbitz(dot)com>
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